Join Date: Sep 2003
Location: Los Fresnos, TX
Blaster TFI Coil - Primary Resistance higher than spec?
Would a higher primary resistance reading mean a bad coil?
I've got a MSD TFI Coil P/N 8227 with the following ohm ratings (based on cold coil, disconnect from car):
Primary: 1.7 ohms
Secondary: 4.6 ohms
MSD specs are:
Primary: 0.6 ohms
Secondary: 4.7 ohms
I can't find info about ratings being higher = bad coil. Talking to the local VatoZone rep, most bad coils they test shows no resistance (0 ohms).
I'm trying to eliminate the coil from possible reason i'm having issues.
1994 Mustang GT
-Stock 302 with Explorer Intakes, E303, Tune, LTs, Spintechs, O/R X-Pipe, 3.73s and a few things more.